docker: Add script to create "fake" translations for testing i18n

tools/docker/bin/fakepot.sh

@@ -0,0 +1,188 @@
+#!/bin/bash
+
+set -eo pipefail
+
+source /usr/local/src/jetpack-monorepo/tools/includes/chalk-lite.sh
+source /usr/local/src/jetpack-monorepo/tools/includes/plugin-functions.sh
+
+if [[ -z "$1" || "$1" == "-h" || "$1" == "--help" ]]; then
+	cat <<-EOF
+		USAGE: $0 <plugin_dir>
+
+		This is a script, intended to be run inside the Jetpack Docker environment,
+		to create plugin translations for two fake languages.
+
+		 - en_piglatin: All messages are translated into Pig Latin.
+		 - en_rtl: All messages will display backwards, and the interface will be
+		   right-to-left.
+
+		Once you have run the script, in WordPress Admin > Settings > General you
+		should see the above two languages as options for "Site Language".
+
+		Note WordPress itself is not translated as described, the translations are
+		only created for messages in the specified plugin.
+
+		This is intended for testing i18n of new interfaces, or testing i18n
+		generation, or the like.
+	EOF
+	exit
+fi
+
+PLUGIN_DIR="$1"
+find_plugin_file
+info "Found plugin file $PLUGIN_FILE"
+
+DOMAIN="$(sed -n -E 's/^ \* Text Domain: ([a-zA-Z0-9_-]+)[ \t]*$/\1/p' "$PLUGIN_FILE")"
+[[ -n "$DOMAIN" ]] || die "Couldn't find text domain in $PLUGIN_FILE"
+info "Found text domain $DOMAIN"
+
+TMPDIR="$(mktemp --tmpdir -d fakepot.XXXXXXX)"
+function do_cleanup {
+	info "Cleaning up $TMPDIR"
+	rm -rf "$TMPDIR"
+}
+trap "do_cleanup" EXIT INT TERM
+
+# This should match similar logic in .github/files/build-all-projects.sh
+info "Copying build files for plugin"
+OLDDIR="$(pwd)";
+cd "$PLUGIN_DIR"
+mkdir "$TMPDIR/plugin"
+{
+	# Include unignored files by default.
+	git -c core.quotepath=off ls-files
+	# Include ignored files that are tagged as production-include.
+	git -c core.quotepath=off ls-files --others --ignored --exclude-standard | git -c core.quotepath=off check-attr --stdin production-include | sed -n 's/: production-include: \(unspecified\|unset\)$//;t;s/: production-include: .*//p'
+} |
+	# Remove all files tagged with production-exclude. This can override production-include.
+	git -c core.quotepath=off check-attr --stdin production-exclude | sed -n 's/: production-exclude: \(unspecified\|unset\)$//p' |
+	# Copy the resulting list of files into the clone.
+	xargs cp -d --parents --target-directory="$TMPDIR/plugin"
+cd "$OLDDIR"
+
+info "Creating POT file"
+mkdir "$TMPDIR/pot"
+php -d memory_limit=2G $(command -v wp) --allow-root --debug i18n make-pot "$TMPDIR/plugin/" "$TMPDIR/pot/$DOMAIN.pot"
+
+info "Making translations"
+cat <<EOF > "$TMPDIR/pot/en_piglatin.po"
+# Dummy po file.
+msgid ""
+msgstr ""
+"PO-Revision-Date: $(date +'%F %T%z')\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+"Plural-Forms: nplurals=2; plural=n != 1;\n"
+"Language: en_piglatin\n"
+
+EOF
+cat <<EOF > "$TMPDIR/pot/en_rtl.po"
+# Dummy po file.
+msgid ""
+msgstr ""
+"PO-Revision-Date: $(date +'%F %T%z')\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+"Plural-Forms: nplurals=2; plural=n != 1;\n"
+"Language: en_rtl\n"
+
+msgctxt "text direction"
+msgid "ltr"
+msgstr "rtl"
+EOF
+
+mkdir "$TMPDIR/js"
+cd "$TMPDIR/js"
+echo '{}' > package.json
+pnpm add gettext-parser
+node - -- "$DOMAIN" "$TMPDIR/pot" <<'EOJ'
+        const [ domain, dir ] = process.argv.slice( 3 );
+        const path = require( 'path' );
+        const fs = require( 'fs' );
+        const { po } = require( 'gettext-parser' );
+
+        const data = po.parse( fs.readFileSync( path.resolve( dir, `${ domain }.pot` ) ) );
+
+	function transform( cb ) {
+		for ( const k1 in data.translations ) {
+			for ( const k2 in data.translations[k1] ) {
+				if ( k2 === '' ) {
+					continue;
+				}
+				const v = data.translations[k1][k2];
+				v.msgstr = [];
+				v.msgstr.push( cb( v.msgid ) );
+				if ( v.msgid_plural ) {
+					v.msgstr.push( cb( v.msgid_plural ) );
+				}
+			}
+		}
+	}
+
+	function to_piglatin( s ) {
+		let ret = '';
+		while ( s.length > 0 ) {
+			let m;
+			if ( m = s.match( /^([b-df-hj-np-tv-z]+)([aeiou][a-z]*)/i ) ) {
+				ret += `${ m[2] }-${ m[1] }ay`;
+			} else if ( m = s.match( /^[a-z]+/i ) ) {
+				ret += m[0] + '-way';
+			} else if ( m = s.match( /^<[^>]*>/i ) ) {
+				ret += m[0];
+			} else if ( m = s.match( /^%(?:\d+\$)?(?:[-+ 0]|\'.)*\d*(?:\.\d+)?[%bcdeEfFgGhHosuxX]/ ) ) {
+				ret += m[0];
+			} else if ( m = s.match( /^[<%][^a-z<%]*/i ) ) {
+				ret += m[0];
+			} else if ( m = s.match( /^[^a-z<%]+/i ) ) {
+				ret += m[0];
+			} else {
+				console.log( "WTF?", s );
+			}
+			s = s.slice( m[0].length );
+		}
+		return ret;
+	}
+
+	function to_rtl( s ) {
+		let ret = '';
+		while ( s.length > 0 ) {
+			let m;
+			if ( m = s.match( /^[a-z]+/i ) ) {
+				ret += `\u{202e}${ m[0] }\u{202c}`;
+			} else if ( m = s.match( /^<[^>]*>/i ) ) {
+				ret += m[0];
+			} else if ( m = s.match( /^%(?:\d+\$)?(?:[-+ 0]|\'.)*\d*(?:\.\d+)?[%bcdeEfFgGhHosuxX]/ ) ) {
+				ret += m[0];
+			} else if ( m = s.match( /^[<%][^a-z<%]*/i ) ) {
+				ret += m[0];
+			} else if ( m = s.match( /^[^a-z<%]+/i ) ) {
+				ret += m[0];
+			} else {
+				console.log( "WTF?", s );
+			}
+			s = s.slice( m[0].length );
+		}
+		return ret;
+	}
+
+	transform( to_piglatin );
+	fs.writeFileSync( path.resolve( dir, `${ domain }-en_piglatin.po` ), po.compile( data, { foldLength: 0 } ) );
+
+	transform( to_rtl );
+	fs.writeFileSync( path.resolve( dir, `${ domain }-en_rtl.po` ), po.compile( data, { foldLength: 0 } ) );
+EOJ
+rm "$TMPDIR/pot/$DOMAIN.pot"
+
+info "Extracting JS translations"
+wp --allow-root --debug i18n make-json "$TMPDIR/pot/"
+
+info "Creating MO files"
+wp --allow-root --debug i18n make-mo "$TMPDIR/pot/"
+
+info "Copying translations into /var/www/html/wp-content/languages/plugins/"
+mkdir -p /var/www/html/wp-content/languages/plugins/
+rm -f "/var/www/html/wp-content/languages/plugins/$DOMAIN-en_"*
+cp "$TMPDIR/pot/$DOMAIN-en"* "/var/www/html/wp-content/languages/plugins/"
+cp "$TMPDIR/pot/en_"* "/var/www/html/wp-content/languages/"